arm: dts: add omap4 CPU thermal data (0bbf6c54) · Commits · 戴 / test

This patch changes a dtsi file to contain the thermal data for MPU domain on OMAP4 and later SoCs. This data will enable the passive cooling with CPUfreq cooling device at 100C and the system will do a thermal shutdown at 125C. This thermal data can be reused across TI SoC devices. Cc: "Benoît Cousson" <bcousson@baylibre.com> Cc: Tony Lindgren <tony@atomide.com> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-omap@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by:

Eduardo Valentin <eduardo.valentin@ti.com>

arch/arm/boot/dts/omap4-cpu-thermal.dtsi

0 → 100644

+41 −0

Original line number	Diff line number	Diff line
		/*
		* Device Tree Source for OMAP4/5 SoC CPU thermal
		*
		* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
		* Contact: Eduardo Valentin <eduardo.valentin@ti.com>
		*
		* This file is licensed under the terms of the GNU General Public License
		* version 2. This program is licensed "as is" without any warranty of any
		* kind, whether express or implied.
		*/

		#include <dt-bindings/thermal/thermal.h>

		cpu_thermal: cpu_thermal {
		polling-delay-passive = <250>; /* milliseconds */
		polling-delay = <1000>; /* milliseconds */

		/* sensor ID */
		thermal-sensors = <&bandgap 0>;

		trips {
		cpu_alert0: cpu_alert {
		temperature = <100000>; /* millicelsius */
		hysteresis = <2000>; /* millicelsius */
		type = "passive";
		};
		cpu_crit: cpu_crit {
		temperature = <125000>; /* millicelsius */
		hysteresis = <2000>; /* millicelsius */
		type = "critical";
		};
		};

		cooling-maps {
		map0 {
		trip = <&cpu_alert0>;
		cooling-device =
		<&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
		};
		};
		};

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